在窗体上画一个命令按钮，然后编写如下代码： Private Type Record R_ID As Integer R_Name As String * 20 Ene Type Private Sub Commandl_Click( ) Dim M _Sise, N_Char, M_Char Open' c: /file. txt' For Input As 1 M_sise=LOF(1) For N_Char = M_Sise To 1 Step - 1 Seek1, Next Char M_char = Input(1 ,1) Next Print EOF(1) Close1 End Sub 程序运行后，单击命令按钮，其输出结果为【 】。